Move linux sysroots from chrome/installer/linux to build/linux

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 515 matching lines @@
     # This downloads SDK extras and puts them in the
     # third_party/android_tools/sdk/extras directory on the bots. Developers
     # need to manually install these packages and accept the ToS.
     'name': 'sdkextras',
     'pattern': '.',
     # When adding a new sdk extras package to download, add the package
     # directory and zip file to .gitignore in third_party/android_tools.
     'action': ['python', 'src/build/download_sdk_extras.py'],
   },
   {
-    # Downloads the Debian Wheezy sysroot to chrome/installer/linux if needed.
+    # Downloads the current stable linux sysroot to build/linux/ if needed.
     # This sysroot updates at about the same rate that the chrome build deps
     # change. This script is a no-op except for linux users who are doing
-    # official chrome builds.
+    # official chrome builds or cross compiling.
     'name': 'sysroot',
     'pattern': '.',
-    'action': [
-        'python',
-        'src/chrome/installer/linux/sysroot_scripts/install-debian.wheezy.sysroot.py',
-        '--running-as-hook'],
+    'action': ['python', 'src/build/linux/sysroot_scripts/install-sysroot.py',
+               '--running-as-hook'],
   },
   {
     # Update the Windows toolchain if necessary.
     'name': 'win_toolchain',
     'pattern': '.',
     'action': ['python', 'src/build/vs_toolchain.py', 'update'],
   },
   # Pull binutils for linux, enabled debug fission for faster linking /
   # debugging when used with clang on Ubuntu Precise.
   # https://code.google.com/p/chromium/issues/detail?id=352046
@@ skipping 235 matching lines @@
     # migration completes (let's say Sep 1 2014).
     'name': 'check_git_config',
     'pattern': '.',
     'action': [
         'python',
         'src/tools/check_git_config.py',
         '--running-as-hook',
     ],
   },
 ]